Tragic First: Illinois Confirms Its Initial West Nile Virus Fatality of the Year in Cook County

Illinois public health officials have delivered a somber announcement, confirming the state's first West Nile virus-related death of 2024. The victim, a resident of Cook County, succumbed to complications from the mosquito-borne illness, underscoring the ongoing threat of the virus as the summer season progresses into fall.

This tragic milestone serves as a stark reminder that West Nile virus remains active across Illinois.

The Illinois Department of Public Health (IDPH) has been diligently monitoring WNV activity since early in the season, with positive samples found in mosquitoes, birds, and even non-human animals prior to this human fatality.

West Nile virus is primarily transmitted through the bite of an infected mosquito.

Mosquitoes become carriers after feeding on birds infected with the virus. While most individuals who contract WNV experience no symptoms or only mild, flu-like illness (fever, headache, body aches, joint pain, vomiting, diarrhea, or rash), a small percentage – particularly the elderly and those with compromised immune systems – can develop severe neurological conditions.

These more serious illnesses can include encephalitis (inflammation of the brain) or meningitis (inflammation of the membranes surrounding the brain and spinal cord), which can be life-threatening or result in long-term complications.

In light of this confirmed fatality, health authorities are intensifying their call for residents to take proactive measures to protect themselves and their families from mosquito bites.

The IDPH strongly advises adhering to the '4 D's' of West Nile virus prevention:

• Drain: Eliminate sources of standing water around your home where mosquitoes can lay eggs. This includes emptying old tires, buckets, birdbaths, and unclogging gutters.
• Dusk/Dawn: Avoid being outdoors during these peak mosquito activity hours if possible.
• Dress: Wear long-sleeved shirts and long pants when outdoors, especially during high-risk times, to reduce exposed skin.
• DEET: Apply insect repellent containing DEET, picaridin, oil of lemon eucalyptus, or IR3535 when outside.

  Always follow product label instructions carefully.

The IDPH also urges community members to report any dead birds they find, as these can be an early indicator of West Nile virus presence in an area. While not every dead bird is related to WNV, reporting helps public health officials track the virus's spread and target mosquito control efforts effectively.

As mosquito season typically extends through the first hard frost, vigilance is crucial.

Residents experiencing symptoms consistent with West Nile virus, particularly after being bitten by mosquitoes, should contact their healthcare provider immediately. Early diagnosis and supportive care can be critical for managing severe cases.